Shuttle-throwing mechanism



Feb. 26 1924. 1,485,310

' c. H. STRALUCKE v SHUTTLE THROWING MECHANISM Filed June '21, 1922 3- Shee'cs-Sheet 1 15 *5 W i v 'm j H L i v I wmvsssas- INVENTOR Cal-Z Ji: SZraZucXzq ATTORNEYS Feb. 26 1924. 1,485,310 'C. H. STRALUCKE SHUTTLE THROWING MECHANISM Filed June 21, 1922 v 3 Sheets-Sheet 2 v INVENTOR H -W 2 e l v CaJ'ZJi slrazzwze "10mins WITNESSES Patented Feb. 26, 1924.

UNITED stares sHUTrLn-TnRowIne EcHANIsM.

Application filed June 21, 1922. Serial No. 569,938,

To all whom it may concern:

Be it known that I, CARL H. STRALUQKE, a.

citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county of Bronx and State of New York, have invented a new and'Improved Shuttle-Throwing Mechanism, of which the following is a full, clear, and exact description.

This invention relates'to looms and particularly toan improved mechanismfor actuating the pickers automatically andjhas for 'an object to present a'simple, easily attached construction for each of the pickers an ranged to operate them in the proper time.

Another object of the invention is to provide a simplified construction of power opcrating means whereby the back and forth motion of the lay will act to cause the pickers to be operated properly and at the proper time.

A still furtherobje'ct of the invention is to provide a device for moving the pickers of looms wherein power is'transmitted from the'lay of the loom for compressing the spring which is released at the proper time for operating the picker in time with the movement of the la Inthe accompanying drawings-' tion of a loom with a'throwing device embodying the invention applied thereto.

Figure 2 is a sectional view through Fig- Figure 7 is a side elevation of thethrow ing. mechanism seen-at the-right end of Figure 4:,the same being in an outerposition.

Referring to the accompanying drawings, by numeral, 11 indicates a loomframe of engaging the notch 36 15 provided with a any desired kind, said frame being, of course, stationary. The usual lay swords 12 are pivotally connected to; the frame as shown inigures land 2 and-are secured to the lay 13. The construction just described is old and well known and, therefore, forms no part of the present invention-except in combination .with parts hereinafter fully described. (Arranged on the frame .11 near in the opposite direction.

Figure 1 is a fragmentary front elevaeach of the pickers 14 and 15 is a rack 16 rigidly secured in place and continually meshing with the respective pinions 17. As

the throwing mechanism for each of the pickers 14 and 15 is identical, the descriptionof one will apply equally to both.

The connection of the pinion 17 and rack 16 is such that when the lay 13 is moved back and forth in the usual manner, the shaft18 to which the pinion, 17 is rigidly securedi is FFEQE.

rotated in one direction. and then rotatedg Through mechanism hereinafter fully described, this rota tion will compress a suitable spring which will be released atthe proper time for actuatingv the picker 15. As shown in F igure'3, the shaft or rod 18 is journaled in a casing 19 and carries a bevel pinion20 at the opposite end of theshaft-to pinion 17. The

pinion 20 meshes with 'a pinion 21 which pinion in turn meshes with a bevel pinion 22 loosely mounted on the shaft 23 and carrying a clutch face 24;; This clutch face is adapted to be engaged with the clutch member 25 splined on the shaft 23- and continually. pressed by the spring 26 which spring also acts against the collar .27 perferably rigidly secured to the shaft 23. This collar is held againstmovement by the pro-jection 28 formingpart of'the casing 19. Aratchet wheel 29 is rigidly secured to shaft '23 and is held against accidental -longitudinal movement by the collar 30,Isaid ratchet -wheel beingengaged bythe spring pressed pawlt3l whereby shaft 23 can rotate in one direction only. This shaft extendsthrough the opposite end of casing 19 to that carrying shaft-18 and is rigidly secured to a cam 32. This cameo-acts with a catch 33pivotally mounted on to the end OfCfiSlllg 19.

The catch 33 has one end normally pressing against the power shaft 35', which shaft; is provided with a notchi36 into which the catch is adapted to move when the; shaft s moved to an' outer position as shown in Figure 7. c

The section of the catch 33 opposite that large notch 37 whereby the catch may read ilystraddle the shaft 23 whole near the-.ex-

tremerend'. of catch 33 is a bearing roller 38;

33 will raisethebearing roller 38.and that;

end of the catch until the bearing roller is in such a position as to slip by the cam. As soon as the catch 33 has been moved out of engagement with the notch 36, shaft 37 will be released and will immediately move to the left from the position shown in Figure 7 said movement being caused by the action of the volute springs 39 and 40.

From Figures 3 and 4 it will be noted that there are two springs used and they are of the volute type in order that a long and almost even tension may be provided for the shaft 35, aid springs being separated by a suitable spacing ring 41. A sliding or adjustable cup 42 is carried by the casing 19 for receiving one end of spring while a cup 43 receives the large end of spring 39, said cup 43 moving with the shaft 35 by reason of the collar 44 rigidly secured to the shaft. A suitable recess 45 is arranged in the casing 19 for receiving the cup 43 when the springs 39 and 40 are expanded. A cushioning spring 46 surrounds shaft 35 and is positioned in an auxiliary cup 47, said cushioning spring acting with the stop 44 for cushioning the return movement of said stop and associated parts. This spring also will act to gradually slow down the picker 15 after the same has reached a certain point.

I It will be noted that the picker 15 is provided with an extension 48 which fits over the shaft 35 and which is secured to said shaft by any desired means, as for instance, the set screw 49. The extension 48 is provided with a depending shoulder 50 co-acting with the shoulder 51 on the pivotally mounted latch 52, which latch has a cam shoulder 53 co-acting with the resilient scam shoulder 54 whereby the latch is returned to its operative position as shown in Figure 4. The latch 52 is pivotally mounted at 55 on a laterally extending section 56 of the rack bar 57, said rack bar having a suitable rack 58 meshing continually with a pinion 59. This pinion is rigidly secured to ashaft 60 which in turn carries a pinion 61 meshing continually with a gear wheel 62 and said gear wheel in turn meshing with a larger gear wheel 63 rigidly secured to shaft 64, which shaft is also rigidly secured to the bevel pinion 21. By this arrangement of gearing, power is transmitted from the stationary rack 16 to the reciprocating rack: bar 57 and said rack bar in its outward movement, namely, the movement which causes it to reach the position shown in Figure 7, causes the picker 15 to be set ready for throwing the shuttle at the desiredtime. When the parts are in the position shown in Figure 4, the rack bar 57 moves outwardly and carries with it the picker 15, shaft 35 and associated parts until the catch 33 moves into the notch 36. During this movement, the springs 39 and 40 are compressed and are ready to quickly return the picker and associated parts as soon as the catch 33 has been disengaged; It will be understood that the parts are properly timed for causing the cam 32 to disengage the catch 33 at the correct time for throwing the shuttle. As soon as the shuttle has been thrown, the latch 52 will immediately begin to re-set the picker and this action will continue as long as the loom is in operation. The tension of springs 39 and 40 ma be varied by adjusting the cup 42, said ad ustment being accomplished by operating the set screws associated therewith.

What I claim is:

1. In a shuttle throwing mechanism for looms, a picker, a reciprocating shaft secured to the picker, a pair of springs surrounding said shaft, a stationary abutment for one of said springs, an abutment secured to said shaft for the other of said springs whereby both of the springs will be compressed when the shaft is moved in one direction, a catch for locking the shaft when moved to a position for compressing said springs, and a cam for unlocking said shaft.

2. In a shuttle throwing mechanism of the character described, a picker, a spring for moving the picker in one direction, a pivotally mounted latch formed with a shoulder for engaging said picker for moving'the picker in one direction, a catch for locking the picker in a given position, a cam for returning said latch to an operative position, iimllg a rotatable cam for disengaging said 3. In a shuttle throwing mechanism, a casing carried by the lay of a loom, a picker, a reciprocating rod carried by the casing and rigidly secured to the picker, spring means for moving the picker and rod in one direction, and means for moving-the picker and rod in the opposite direction,

said last mentioned means including a reciprocating rack, and a train of gears, said train of gears including a driving pinion and a stationary rack meshing with said driving pinion whereby as the lay is thrown back and forth said driving pinion will be rotated in one direction and then reversed and rotated in the opposite direction.

4. In a shuttle throwing mechanism of the character described, a casing adapted to be secured to the lay of a loom, a reciprocating rod carried by the casing, a pinion rigidly secured to said reciprocating rod, a catch for locking the rod in a given position, spring means acting on the rod for moving the rod and picker to a different position from that in which it is held by said catch, a cam for disengaging said catch to allow the spring means to function, a shaft for rotating said cam, a pawl and ratchet for permitting said last mentioned shaft to rotate in one direction only, a clutch member splined to said last mentioned shaft, a pinion having a clutch face adapted to. engage said clutch member for rotating the same, and means for rotating said pinion in one direction part of the time and in the opposite direction for the remaining part of the time, said means including a driving pinion and a stationary rack meshing with the driving pinion.

5. In a shuttle throwing mechanism, -a picker, a reciprocating shaft for operating said picker, said shaft having a notch, a spring for moving said shaft in one direction, a reciprocating bar for moving the shaft in the opposite direction, a pivotally mounted catch having a projection adapted to fit into said notch for locking the shaft against movement, said catch being formed with a notch extending from one side past the center, a shaft normally extending through said notch, a roller carried by said catch, a cam carried by said shaft and movable to a position engaging said roller for moving the catch to a position out of engagement with said shaft, said shaft being locked when the springs are under tension and unlocked for permitting the springs to operate the shaft and picker.

CARL H. sTRALUoKEf 

